EP 2539289 B1 20150527 - LITHIUM ALUMINOSILICATE GLASS HAVING A HIGH E-MODULE AND METHOD FOR THE PRODUCTION THEREOF
Title (en)
LITHIUM ALUMINOSILICATE GLASS HAVING A HIGH E-MODULE AND METHOD FOR THE PRODUCTION THEREOF
Title (de)
LITHIUM-ALUMINOSILICATGLAS MIT HOHEM E-MODUL UND VERFAHREN ZU DESSEN HERSTELLUNG
Title (fr)
VERRE D'ALUMINOSILICATE DE LITHIUM AYANT UN MODULE D'ÉLASTICITÉ IMPORTANT ET SON PROCÉDÉ DE FABRICATION
Publication
Application
Priority
- DE 102010009585 A 20100226
- EP 2011000888 W 20110224
Abstract (en)
[origin: WO2011104018A2] The invention relates to lithium aluminosilicate glass and to a method for the production of lithium aluminosilicate glass, the glass having the following composition (in mol%): 60 - 70 SiO2; 10 - 13 Al2O3; 0.0 - 0.9 B2O3;9.6 - 11.6 Li2O; 8.2 - 2O; 0.0 - 0.7 K2O; 0.0 - 0.2 MgO; 0.2 - 2.3 CaO; 0.0 - 0.4 ZnO; 1.3 - 2.6 ZrO2; 0.0 - 0.5 P2O5; 0.003 - 0.100 Fe2O3; 0.0 - 0.3 SnO2; 0.004 - 0.200 CeO2. The following ratios and conditions apply to the glass according to the invention: (Li2O+Al2O3) / (Na2O+K2O) > 2; 0.47 2O/ (Li2O+Na2O+K2O) 2O3+ZnO+P2O5+B2O3+CeO2 < 3, wherein at least four of the six oxides are contained. Such a lithium aluminosilicate glass has an E-module of at least 82 GPa. Moreover, it has a glass transition temperature Tg of less than 540 °C and/or a processing temperature of less than 1150 °C. The glass is suitable for shaping by means of a float process and can be chemically and/or thermally tempered so that it can have a bending strength of at least 550 N/mm2.
IPC 8 full level
C03C 3/097 (2006.01); C03B 18/02 (2006.01); C03B 27/012 (2006.01); C03C 3/083 (2006.01); C03C 3/112 (2006.01); C03C 21/00 (2006.01)
CPC (source: EP KR US)
C03B 18/02 (2013.01 - US); C03B 27/012 (2013.01 - US); C03C 3/083 (2013.01 - EP US); C03C 3/087 (2013.01 - KR); C03C 3/091 (2013.01 - KR); C03C 3/097 (2013.01 - EP US); C03C 3/112 (2013.01 - EP US); C03C 21/00 (2013.01 - US); C03C 21/002 (2013.01 - EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
DE 102010009585 A1 20110901; DE 102010009585 B4 20120419; CN 102892723 A 20130123; CN 102892723 B 20150422; EP 2539289 A2 20130102; EP 2539289 B1 20150527; JP 2013520387 A 20130606; JP 5767253 B2 20150819; KR 101858764 B1 20180516; KR 20130025379 A 20130311; US 2013186140 A1 20130725; US 9096460 B2 20150804; WO 2011104018 A2 20110901; WO 2011104018 A3 20121011
DOCDB simple family (application)
DE 102010009585 A 20100226; CN 201180011289 A 20110224; EP 11706179 A 20110224; EP 2011000888 W 20110224; JP 2012554246 A 20110224; KR 20127025343 A 20110224; US 201113581378 A 20110224